65397923 has 2 divisors, whose sum is σ = 65397924. Its totient is φ = 65397922.

The previous prime is 65397889. The next prime is 65397977. The reversal of 65397923 is 32979356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65397923 - 2⁸ = 65397667 is a prime.

It is not a weakly prime, because it can be changed into another prime (65387923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32698961 + 32698962.

It is an arithmetic number, because the mean of its divisors is an integer number (32698962).

Almost surely, 2^65397923 is an apocalyptic number.

65397923 is a deficient number, since it is larger than the sum of its proper divisors (1).

65397923 is an equidigital number, since it uses as much as digits as its factorization.

65397923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 44.

The square root of 65397923 is about 8086.8982310896. The cubic root of 65397923 is about 402.8913888998.

The spelling of 65397923 in words is "sixty-five million, three hundred ninety-seven thousand, nine hundred twenty-three".